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Related Articles from SNS
Epigenetic changes can be inherited without changing DNA in animals
Epigenetic changes can be inherited without changing DNA in animals Gaby Clark Scientific Editor Robert Egan Associate Editor Typically, the information encoded in DNA allows organisms to develop, function, and pass traits across generations. Yet DNA alone does not explain how genes are switched on and off in different cells and environments. This regulation is partly controlled by other factors called epigenetics, such as DNA methylation, a chemical modification that can influence gene...
A 5.3-million-year-old deep-sea whale necropolis in the Diamantina Zone
Abstract Whale falls are biodiversity oases at seabeds1,2,3,4,5,6, yet their record from the oceans has remained sparse and fragmentary6,7. Here we report the discovery of a vast whale necropolis in the Diamantina Zone (4,616- to 7,001-m depth), extending about 1,200 km along the sea floor of the southeastern Indian Ocean. This area has a deep and extensive accumulation comprising five modern natural whale-fall communities and 476 fossil cetaceans recorded.
Amplified Arctic iceberg traffic reshapes benthic biodiversity
Abstract The Arctic is undergoing rapid warming, resulting in retreating sea ice and glaciers1, yet how cryospheric changes propagate into the deep ocean remains poorly understood2. Here we identify a climate-driven mechanism linking accelerating glacier disintegration to an increase in deep-sea hard-bottom habitats far beyond calving fronts. Seafloor observations in Fram Strait show a localized increase in the density and patchiness of dropstones delivered by debris-laden icebergs.
Box jellyfish reveal secret life cycle with implications for coastal safety
Box jellyfish reveal secret life cycle with implications for coastal safety Lisa Lock Scientific Editor Robert Egan Associate Editor Box jellyfish are often feared as dangerous animals, with some species capable of causing severe or even fatal stings. However, box jellyfish nematocysts—organelles responsible for this toxic sting—are theorized to also play an unexpected role in reproduction. While many studies focus on researching the range of toxicity levels exhibited by the more than 50...